26
3P362438-5N English
•
Push BS3 one time; the value which is returned (depending on the
actual field situation), is the amount of indoor units which are con
-
nected to the system.
Result: mode 1 setting 10 is addressed and selected, return value is
monitored information.
•
To leave the monitoring function, push BS1 one time, you will return
to the default situation when shipped from factory.
Mode 2
Mode 2 is used to set field settings of the outdoor unit and system.
•
Changing and access the setting in mode 2:
Once mode 2 is selected (push BS1 for more than 5 seconds), you
can select the wanted setting. It is done by pushing BS2.
Accessing the selected setting’s value is done by pushing BS3 one
time.
•
To quit and return to the initial status, press BS1.
•
Changing the value of the selected setting in mode 2:
- Once mode 2 is selected (push BS1 for more than 5 seconds)
you can select the wanted setting. It is done by pushing BS2.
- Accessing the selected setting’s value is done by pushing BS3
one time.
- Now BS2 is used to select the required value of the selected
setting.
-
When the required value is selected, you can define the change
of value by pushing BS3 one time.
- Press BS3 again to start operation according to the chosen value.
Example:
Checking the content of parameter [2-18] (to define the high static
pressure setting of the outdoor unit’s fan).
[A-B]=C in this case defined as: A=2; B=10; C=the value we want to
know/change
Make sure the segment indication is as during normal operation (de-
fault situation when shipped from factory).
•
Push BS1 for over 5 seconds; result segment display:
Result: mode 2 is accessed.
•
Push BS2 18 times; result segment display:
Result: mode 2 setting 18 is addressed.
•
Push BS3 one time; the value which is returned (depending on the
actual field situation), is the status of the setting. In the case of [2-
18], default value is 0, which means the function is not active.
Result: mode 2 setting 18 is addressed and selected, return value is
the current setting situation.
•
To change the value of the setting, push BS2 till the required value
appears on the segment indication. When achieved, define the set
-
ting value by pushing BS3 one time. To start operation according to
the chosen setting, confirm again by pushing BS3.
•
To leave the monitoring function, push BS1 two times, you will
return to the default situation when shipped from factory.
13 .2 .2 . Operating the DIP switches
By operating the DIP switches it is possible to:
What to do with DIP switch DS1
1
Cool/Heat selector (refer to the manual of the Cool/
Heat selector switch)
OFF=not installed=factory setting
2-4
NOT USED
DO NOT CHANGE THE FACTORY SETTING
What to do with DIP switch DS2
1-4
NOT USED
DO NOT CHANGE THE FACTORY SETTING
13 .3 .
Connecting the PC configurator to the outdoor unit
Connection of the optional PC configurator cable to the outdoor unit has to be
done on A1P. Connect the 999482P3 cable to the 5-pin blue connector X27A.
CAUTION
Works executed on the outdoor unit are best done under dry weather
conditions to avoid water ingress.
X27A
1
2
3
2
3
4
5
H
J
S
T
X27A
A1P
1 PC
2 Cable (999482P3)
3 Main printed circuit
board
14 . Charging refrigerant
14 .1 . Precautions
NOTE
• Refrigerant cannot be charged until field wiring has been completed.
•
Refrigerant may only be charged after performing the leak test and
the vacuum drying.
• When charging a system, care shall be taken that its maximum permis
-
sible charge is never exceeded, in view of the danger of liquid hammer.
• Charging with an unsuitable substance may cause explosions and acci
-
dents, so always ensure that the appropriate refrigerant R410A is charged.
•
Refrigerant containers shall be opened slowly.
•
Always use protective gloves and protect your eyes when charging
refrigerant.
•
When the refrigerant system is to be opened, refrigerant must be
treated according to the applicable legislation.
•
Additional refrigerant charge calculation parameters are required
when installing the outdoor unit connected to a VRV DVS DOAS
unit. Refer to the VRV DVS DOAS installation manual for DOAS
refrigerant charge calculation procedures.
DANGER
See Safety considerations on page i.
•
To avoid compressor breakdown. Do not charge the refrigerant
more than the specified amount.
•
This outdoor unit is factory charged with refrigerant and depending on
pipe sizes and pipe lengths some systems require additional charging
of refrigerant. See 14.2. Calculating the additional refrigerant charge.
•
In case recharge is required, refer to the nameplate of the unit.
It states the type of refrigerant and necessary amount.
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